[Fennec F-Droid] Some icons are missing in some webpages.
NOTE: I am posting this issue here and not in mozilla's bug tracker because this bug is only present in the F-Droid version of Fennec.
User Agent: Mozilla/5.0 (Android 4.4.2; Mobile; rv:52.0) Gecko/52.0 Firefox/52.0
As the title says when browsing some pages with Fennec F-Droid some icons like the menu icons are missing. I tested with pages like ffmpeg.org, GitLab and Mozilla Developer Network and this bug is present. The icons are actually replaced by squares (as seen in the image attached).